Description of productsTechnical Information 14. Tap, Thread Limits ■ for Tripod Threads Unit:mm ■ for Tire Valve Threads Unit:mm MajorDiameterPitch Diameter MinorDiameter Size MajorDiameterPitch Diameter Minor Diameter Size Class Basic Upper LowerBasicTolerance ToleranceBasic Basic Size Basic Size Basic Size Size Size ( μ m) ( μ m) Size++ 5 V 1 5.334 4.869 4.597 1/4 - 20 - 6.350 5.525 230 210 4.975 8 V 1 7.798 7.284 7.036 8 V 2 7.938 7.250 6.782 9 V 1 9.525 9.010 8.661 10 V 1 9.800 9.380 8.750 ■ for Thick Steel Conduit Threads Unit:mm 10 V 2 10.414 9.815 9.350 Major Diameter Pitch Diameter Minor DiameterSize 11 V 1 11.113 10.287 9.729 Basic Size Basic Size Basic Size 12 V 1 12.319 11.669 11.176 CTG 16 - 14 20.955 19.793 18.922 13 V 1 12.700 11.875 11.328 CTG 22 - 14 26.441 25.279 24.408 13 V 2 12.700 12.185 11.837 CTG 28 - 11 33.249 31.770 30.661 15 V 1 15.137 14.380 13.750 CTG 36 - 11 41.910 40.431 39.322 16 V 1 15.875 15.263 14.869 CTG 42 - 11 47.803 46.324 45.215 17 V 1 17.137 16.380 15.750 CTG 54 - 11 59.614 58.135 57.026 17 V 2 17.463 16.775 16.307 CTG 70 - 11 75.184 73.705 72.596 17 V 3 17.463 16.432 15.748 CTG 82 - 11 87.884 86.405 85.296 19 V 1 19.050 18.019 17.323 CTG 92 - 11 100.330 98.851 97.742 20 V 1 20.642 19.885 19.250 CTG 104 - 11 113.030 111.551 110.442 ■ for Steel Conduit Threads Unit:mm ■ for Bicycle Tire Valve Threads Unit:mm Major Diameter Pitch Diameter Minor Diameter Major Diameter Pitch Diameter Minor Diameter Size Size Basic Size Basic Size Basic Size Basic Size Basic Size Basic Size CTC 19 - 16 19.100 18.343 17.708 CTV 5 - 36 5.330 4.872 4.566 CTC 25 - 16 25.400 24.643 24.008 CTV 5 - 24 5.100 4.413 3.954 CTC 31 - 16 31.800 31.043 30.408 CTV 8 - 32 7.900 7.384 7.041 CTC 39 - 16 38.100 37.343 36.708 CTV 8 - 30 8.100 7.550 7.183 CTC 51 - 16 50.800 50.043 49.408 5V2 5.370 4.760 4.400 CTC 63 - 16 63.500 62.743 62.108 6V1 6.160 5.725 5.440 CTC 75 - 16 76.200 75.443 74.808 Technical-34